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ZA824632B - Electrolytic production of aluminium - Google Patents

Electrolytic production of aluminium

Info

Publication number
ZA824632B
ZA824632B ZA824632A ZA824632A ZA824632B ZA 824632 B ZA824632 B ZA 824632B ZA 824632 A ZA824632 A ZA 824632A ZA 824632 A ZA824632 A ZA 824632A ZA 824632 B ZA824632 B ZA 824632B
Authority
ZA
South Africa
Prior art keywords
aluminum
components
composite material
molten
alumina
Prior art date
Application number
ZA824632A
Inventor
Vittorio De Nora
Juergen Friedrich Gauger
Jean-Marie Fresnel
Iudita Lea Adorian
Jean-Jacques Rene Duruz
Original Assignee
Diamond Shamrock Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Diamond Shamrock Corp filed Critical Diamond Shamrock Corp
Publication of ZA824632B publication Critical patent/ZA824632B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5053—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials non-oxide ceramics
    • C04B41/5062—Borides, Nitrides or Silicides
    • C04B41/507—Borides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/85—Coating or impregnation with inorganic materials
    • C04B41/87—Ceramics
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/16—Electric current supply devices, e.g. bus bars
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/24—Refining

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Catalysts (AREA)
  • Inorganic Insulating Materials (AREA)
  • Conductive Materials (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Powder Metallurgy (AREA)

Abstract

In the electrolytic production of aluminum by electrowinning or electrorefining processes, cell components such as cathode current feeders which in use are normally covered with molten aluminum are made of a composite material of aluminum or an aluminum alloy or intermetallic compound with an aluminum oxycompound, usually alumina, and possibly containing minor amounts of additives such as borides carbides, nitrides or oxides. The composite material, which remains mechanically stable and electrically conductive at 1000 DEG C., may be prepared by hot pressing powders at 1000 DEG -1700 DEG C. possibly after surface treating the alumina to improve wettability by molten Al. The components are optionally coated, e.g. with TiB2. The composite materials are also useful as non-current carrying components, including separator walls, weirs, packing elements and baffles.
ZA824632A 1981-07-01 1982-06-29 Electrolytic production of aluminium ZA824632B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8120237 1981-07-01

Publications (1)

Publication Number Publication Date
ZA824632B true ZA824632B (en) 1983-06-29

Family

ID=10522922

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA824632A ZA824632B (en) 1981-07-01 1982-06-29 Electrolytic production of aluminium

Country Status (14)

Country Link
US (1) US4650552A (en)
EP (1) EP0072043B1 (en)
JP (1) JPS58501079A (en)
AT (1) ATE28903T1 (en)
AU (1) AU554703B2 (en)
BR (1) BR8207776A (en)
CA (1) CA1240635A (en)
DE (1) DE3276950D1 (en)
ES (2) ES513605A0 (en)
GB (1) GB2103246A (en)
GR (1) GR76830B (en)
NO (1) NO162732C (en)
WO (1) WO1983000171A1 (en)
ZA (1) ZA824632B (en)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4600481A (en) * 1982-12-30 1986-07-15 Eltech Systems Corporation Aluminum production cell components
ATE53863T1 (en) * 1983-02-16 1990-06-15 Moltech Invent Sa SINTERED METAL-CERAMIC COMPOSITES AND THEIR PRODUCTION.
AU4095185A (en) * 1984-04-27 1985-10-31 Aluminium Company Of America Refractory hard metal interwoven matrix cathode for electrolytic production of aluminum
BR8707791A (en) * 1986-08-21 1989-10-03 Moltech Invent Sa CERMET MATERIAL, CERMET BODY AND MANUFACTURING PROCESS
JPS63156057A (en) * 1986-12-19 1988-06-29 科学技術庁無機材質研究所長 Manufacturing method for high-density perovskite ceramics
US4999097A (en) * 1987-01-06 1991-03-12 Massachusetts Institute Of Technology Apparatus and method for the electrolytic production of metals
JPH03501501A (en) * 1988-07-28 1991-04-04 マサチューセッツ・インステチュート・オブ・テクノロジー Apparatus and method for electrolytic production of metals
DE3838828A1 (en) * 1988-11-17 1990-05-23 Vaw Ver Aluminium Werke Ag Carbon electrode with a gas-tight, thermally-stable protective bell
US5667664A (en) * 1990-08-20 1997-09-16 Comalco Aluminum Limited Ledge-free aluminum smelting cell
US5364513A (en) * 1992-06-12 1994-11-15 Moltech Invent S.A. Electrochemical cell component or other material having oxidation preventive coating
US6001236A (en) * 1992-04-01 1999-12-14 Moltech Invent S.A. Application of refractory borides to protect carbon-containing components of aluminium production cells
US5651874A (en) * 1993-05-28 1997-07-29 Moltech Invent S.A. Method for production of aluminum utilizing protected carbon-containing components
DE69327095T2 (en) * 1992-04-01 2000-04-27 Moltech Invent S.A., Luxemburg/Luxembourg PREVENTION OF OXYDATION OF CARBONATED MATERIAL AT HIGH TEMPERATURES
US5310476A (en) * 1992-04-01 1994-05-10 Moltech Invent S.A. Application of refractory protective coatings, particularly on the surface of electrolytic cell components
US5374342A (en) * 1993-03-22 1994-12-20 Moltech Invent S.A. Production of carbon-based composite materials as components of aluminium production cells
US5486278A (en) * 1993-06-02 1996-01-23 Moltech Invent S.A. Treating prebaked carbon components for aluminum production, the treated components thereof, and the components use in an electrolytic cell
US5868912A (en) * 1993-11-22 1999-02-09 E. I. Du Pont De Nemours And Company Electrochemical cell having an oxide growth resistant current distributor
AU688098B2 (en) * 1994-09-08 1998-03-05 Moltech Invent S.A. Aluminium electrowinning cell with improved carbon cathode blocks
MX9602104A (en) * 1995-06-12 1998-04-30 Praxair Technology Inc Method for producing a tib2-based coating and the coated article so produced.
US5728466A (en) * 1995-08-07 1998-03-17 Moltech Invent S.A. Hard and abrasion resistant surfaces protecting cathode blocks of aluminium electrowinning cells
US5753163A (en) * 1995-08-28 1998-05-19 Moltech. Invent S.A. Production of bodies of refractory borides
US5753382A (en) * 1996-01-10 1998-05-19 Moltech Invent S.A. Carbon bodies resistant to deterioration by oxidizing gases
CA2268931A1 (en) 1996-10-18 1998-04-30 Moltech Invent S.A. The start-up of aluminium electrowinning cells
US6193928B1 (en) * 1997-02-20 2001-02-27 Daimlerchrysler Ag Process for manufacturing ceramic metal composite bodies, the ceramic metal composite bodies and their use
CH692296A5 (en) * 1997-07-11 2002-04-30 Empa Ceramic-metal or metal-ceramic composites.
US6086688A (en) * 1997-07-28 2000-07-11 Alcan International Ltd. Cast metal-matrix composite material and its use
EP1190203B1 (en) * 1999-04-16 2003-03-19 MOLTECH Invent S.A. Protection coating of wear-exposed components used for refining molten metal
EP1366214B1 (en) * 2001-03-07 2004-12-15 MOLTECH Invent S.A. Aluminium-wettable porous ceramic material
RU2283372C2 (en) * 2001-03-07 2006-09-10 Мольтех Инвент С.А. Cell for electrochemical production of aluminum with use of metal-base anodes
AUPR443901A0 (en) * 2001-04-10 2001-05-17 Bhp Innovation Pty Ltd Method for reduction of metal oxides to pure metals
US6855241B2 (en) 2002-04-22 2005-02-15 Forrest M. Palmer Process and apparatus for smelting aluminum
US6863788B2 (en) * 2002-07-29 2005-03-08 Alcoa Inc. Interlocking wettable ceramic tiles
US20040038805A1 (en) * 2002-08-21 2004-02-26 Meissner David G. Cast cermet anode for metal oxide electrolytic reduction
US20040074625A1 (en) * 2002-10-22 2004-04-22 Musat Jeffrey B. Method of making an inert anode for electrolytic reduction of metal oxides
KR20110047191A (en) * 2008-08-17 2011-05-06 오를리콘 트레이딩 아크티엔게젤샤프트, 트뤼프바흐 Use of a target for spark evaporation, and a method for producing a target suitable for the use
US8609254B2 (en) 2010-05-19 2013-12-17 Sanford Process Corporation Microcrystalline anodic coatings and related methods therefor
US8512872B2 (en) 2010-05-19 2013-08-20 Dupalectpa-CHN, LLC Sealed anodic coatings
WO2018175233A1 (en) * 2017-03-19 2018-09-27 Purdue Research Foundation Methods and materials systems for enhancing corrosion resistance of solid materials and corrosion resistant devices made therefrom

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US2480475A (en) * 1946-03-12 1949-08-30 Reynolds Metals Co Refractory
GB981962A (en) * 1960-11-28 1965-02-03 British Aluminium Co Ltd Improvements in or relating to solid current conducting elements for use in the production of aluminium and methods of manufacturing such elements
FR1257079A (en) * 1960-02-12 1961-03-31 Renault New tenacious and refractory cermet-like substance
FR1353565A (en) * 1963-01-15 1964-02-28 Pechiney Prod Chimiques Sa Improvement of the refractory and heat-insulating lining of the tanks for the preparation of aluminum by igneous electrolysis
US3459515A (en) * 1964-03-31 1969-08-05 Du Pont Cermets of aluminum with titanium carbide and titanium and zirconium borides
US3408312A (en) * 1964-04-07 1968-10-29 Reynolds Metals Co Electrically conductive cermet compositions
US3328280A (en) * 1964-04-07 1967-06-27 Reynolds Metals Co Electrically conductive cermet compositions
US3607685A (en) * 1968-08-21 1971-09-21 Arthur F Johnson Aluminum reduction cell and system for energy conservation therein
US3661736A (en) * 1969-05-07 1972-05-09 Olin Mathieson Refractory hard metal composite cathode aluminum reduction cell
US3705112A (en) * 1970-01-06 1972-12-05 Allied Chem Novel hot-pressed refractory articles and preparation thereof
BE785949A (en) * 1971-07-06 1973-01-08 Int Nickel Ltd COMPOUND METAL POWDERS AND THEIR PRODUCTION
CH579155A5 (en) * 1971-11-16 1976-08-31 Alusuisse
JPS5142985A (en) * 1974-10-11 1976-04-12 Mitsubishi Metal Corp ARUMINIUMUDODENZAIRYONO SEIZOHO
US4098725A (en) * 1974-11-28 1978-07-04 Tokyo Denki Kagaku Kogyo Kabushiki Kaisha Low thermal expansive, electroconductive composite ceramics
SU545700A1 (en) * 1975-05-11 1977-02-05 Всесоюзный научно-исследовательский и проектный институт алюминиевой, магниевой и электродной промышленности The method of burning the electrolyzer to produce aluminum
JPS5246316A (en) * 1975-10-11 1977-04-13 Sumitomo Alum Smelt Co Ltd Process for producing aluminium base composite material reinforced wit h alumina fiber
AU506485B2 (en) * 1976-06-09 1980-01-03 National Research Development Corp. Packed, bed electrorefining
DE2805374C2 (en) * 1978-02-09 1982-07-15 Vereinigte Aluminium-Werke Ag, 5300 Bonn Process for the production of aluminum by molten electrolysis
GB2069530B (en) * 1980-01-28 1984-05-16 Diamond Shamrock Corp Packed cathode bed for electrowinning metals from fused salts
CH645675A5 (en) * 1980-11-26 1984-10-15 Alusuisse CATHOD FOR A MELTFLOW ELECTROLYSIS CELL FOR PRODUCING ALUMINUM.

Also Published As

Publication number Publication date
AU8581382A (en) 1983-02-02
NO162732B (en) 1989-10-30
ES8401534A1 (en) 1983-12-16
EP0072043B1 (en) 1987-08-12
BR8207776A (en) 1983-05-31
US4650552A (en) 1987-03-17
NO162732C (en) 1990-02-07
AU554703B2 (en) 1986-08-28
EP0072043A1 (en) 1983-02-16
NO830696L (en) 1983-02-28
ATE28903T1 (en) 1987-08-15
ES8405448A1 (en) 1984-06-01
WO1983000171A1 (en) 1983-01-20
GR76830B (en) 1984-09-04
GB2103246A (en) 1983-02-16
DE3276950D1 (en) 1987-09-17
ES520978A0 (en) 1984-06-01
CA1240635A (en) 1988-08-16
ES513605A0 (en) 1983-12-16
JPS58501079A (en) 1983-07-07

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